
Fire-rated sealing and fire stopping in Four Throws, Kent
Need fire stopping in Four Throws? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Non-fire-rated filler around services
- Service penetrations left open after M&E works
- Hidden openings found during inspections
Fire stopping near Four Throws
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Leave it or put it right?
Open penetrations multiply: each new service adds to the list. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. Around Four Throws, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.
Pricing service penetrations depends on how many there are, their condition and the access, plus any specification you are working to. Ask us for a fixed quote.
Why choose Mastic Doctor in Four Throws
- Joints cleaned back to sound surfaces
- Specification-led, product-correct work
- Clear, fixed quotes
- Fully insured
Read how commercial sealant jobs are priced or our accreditations and insurance.
How we handle fire stopping in Four Throws
A fire-rated sealant is only one part of a tested system: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. Before we seal anything, we check the opening against the detail it is meant to follow, and we say so if it doesn’t fit. Site teams most often ask us about improvised or mixed-product fire seals and open linear gaps along the top of fire-resisting walls, across pipe penetrations, joints between fire-resisting walls and floors and service gaps in risers. Most enquiries from Four Throws start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Rural conversions around Four Throws can put new fire-resisting partitions inside older structures. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Place
- Four Throws (TN18)
- Wider area
- Kent
- Cover
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026

When something else is needed
We check first that sealant really is the fix. It won’t put right:
- Deciding what a wall or floor needs, which belongs to the designer
- Approving the work on behalf of building control
- Fire risk assessments, a job for a competent assessor
If you are not sure, just call the office on 01277 525 020 or email us and we’ll give you a straight answer before you book.
Surfaces we seal
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Service gaps in risers
- Linear gaps at wall heads
- Cable penetrations
Fire-rated sealing for Four Throws buildings
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. Central London is about 42 miles from Four Throws. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.
On a site such as Hawkhurst Station Business Park, which lies north-west of Four Throws, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product. For a school such as Hawkhurst Church of England Primary School, penetration sealing fits best at the end of the summer works.
Four Throws is about 12 miles north of Hastings, in Kent. Across the TN18 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Our Kent coverage takes in 931 places. Sites around Brighton have their own page, about 32 miles away.
Business premises anywhere in TN18 are within our area for service penetrations. Streets here include Rye Road, Foxhole Lane and Conghurst Lane. We also cover Little Conghurst (1 mile south-west), Pipsden (1 mile north-west), Hawkhurst (1 mile north-west), The Moor (1 mile west) and Sandhurst Cross (1 mile south-east). Bigger towns within reach include Royal Tunbridge Wells (13 miles north-west), Paddock Wood (11 miles north-west), Tenterden (7 miles east), Southborough (14 miles north-west), Park Wood (14 miles north) and Staplehurst (9 miles north).
Landmarks near Four Throws
Around Four Throws, our work takes us to commercial buildings near Oak And Ivy Public House and Collingwood Nature Reserve and the streets around them. The nearest railway station is Etchingham station, about 4.5 miles south-west of the centre. Other landmarks nearby include Benenden Hospital (4.9 miles north-east).
For managing agents and facilities managers
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Four Throws. Several sites can go on one quote, so there’s one set of paperwork to deal with.
Places near Four Throws
Other services in Four Throws
On site: what to expect
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work normally takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence, and our waste is bagged and taken away as we go. For work around Four Throws, we aim to finish in one visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- First we confirm the product and tested details named in the specification.
- Openings are measured and grouped by detail.
- Improvised fillers and failed sealant are removed.
- Mineral wool or other backing is fitted where required.
- We gun the sealant in to the specified depth around each service and tool it.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Point out parking and an unloading spot
- Send asbestos survey details if the building is pre-2000
- Clear stock, furniture or equipment away from the joints
Ask for a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, ring 01277 525 020 or email a schedule or drawings.
Advice
When to call us in Four Throws
When a seal departs from its tested detail, the evidence no longer covers it. An oversized gap, too shallow a bead, missing backing or two makers’ products combined are the usual culprits.
Clients usually get in touch after noticing one or more of the following:
- Expanding foam used as fire stopping
- Fire-rated sealant that has cracked or shrunk back
- Snag lists that include open service penetrations
- Open linear gaps along the top of fire-resisting walls
Hotels such as The Queen's Hotel, 1 mile north-west of Four Throws, rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified.
Questions to ask before you book
- What the guarantee covers, and for how long
- Proof of insurance
- How joint depth will be controlled
- Is the sealant right for the movement and the substrate?
How the job changes by surface
Metal pipes
Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on, so we check each one.
Masonry and concrete
Openings through concrete vary from tidy cores to rough break-outs. Each gap is measured where it is widest so we know it sits within the tested range, and any outside it are raised with you.
Questions we’re asked in Four Throws
Do you cover business parks and estates near Four Throws, such as Hawkhurst Station Business Park?
Yes. We cover Four Throws and the area around it, including industrial estates, business parks and retail parks such as Hawkhurst Station Business Park. Send details of the unit and the work through our quote form for a quick quote.
Can you work on a hospital site such as Hawkhurst Community Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Which standards are fire seals tested to?
In short, BS EN 1366-3 and 1366-4 are the fire tests and BS EN 13501-2 is how results are classified. EI 60 means integrity and insulation for 60 minutes in the tested arrangement; installing to the detail is what carries that across to site.
Do you have public liability insurance?
Yes. Our insurance certificate can be sent alongside the quote.
Can you fire stop behind the services contractors?
Yes. Share the penetration schedule and product details for a fixed quote. We can follow the services contractor floor by floor so areas aren’t left open.
What happens if old sealant might contain asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
How do we ask for a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.